package me.ivps.android.weibo.support.database;

import me.ivps.android.weibo.bean.CommentBean;
import me.ivps.android.weibo.bean.CommentListBean;
import me.ivps.android.weibo.bean.android.CommentTimeLineData;
import me.ivps.android.weibo.bean.android.TimeLinePosition;
import me.ivps.android.weibo.support.database.table.MentionCommentsTable;
import me.ivps.android.weibo.support.debug.AppLogger;
import me.ivps.android.weibo.support.utils.AppConfig;

import java.util.ArrayList;
import java.util.List;

import android.content.ContentValues;
import android.database.Cursor;
import android.database.DatabaseUtils;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.text.TextUtils;

import com.google.gson.Gson;
import com.google.gson.JsonSyntaxException;

/**
 * 提到的评论任务
 * 
 * User: qii Date: 13-1-23
 */
public class MentionCommentsTimeLineDBTask {
    
    private MentionCommentsTimeLineDBTask() {
        
    }
    
    private static SQLiteDatabase getWsd() {
        
        DatabaseHelper databaseHelper = DatabaseHelper.getInstance();
        return databaseHelper.getWritableDatabase();
    }
    
    private static SQLiteDatabase getRsd() {
        DatabaseHelper databaseHelper = DatabaseHelper.getInstance();
        return databaseHelper.getReadableDatabase();
    }
    
    public static void addCommentLineMsg(CommentListBean list, String accountId) {
        Gson gson = new Gson();
        List<CommentBean> msgList = list.getItemList();
        
        DatabaseUtils.InsertHelper ih = new DatabaseUtils.InsertHelper(
                getWsd(),
                MentionCommentsTable.MentionCommentsDataTable.TABLE_NAME);
        final int mblogidColumn = ih
                .getColumnIndex(MentionCommentsTable.MentionCommentsDataTable.MBLOGID);
        final int accountidColumn = ih
                .getColumnIndex(MentionCommentsTable.MentionCommentsDataTable.ACCOUNTID);
        final int jsondataColumn = ih
                .getColumnIndex(MentionCommentsTable.MentionCommentsDataTable.JSONDATA);
        
        try {
            getWsd().beginTransaction();
            for (CommentBean msg : msgList) {
                
                ih.prepareForInsert();
                ih.bind(mblogidColumn, msg.getId());
                ih.bind(accountidColumn, accountId);
                String json = gson.toJson(msg);
                ih.bind(jsondataColumn, json);
                ih.execute();
                
            }
            getWsd().setTransactionSuccessful();
        }
        catch (SQLException e) {
        }
        finally {
            getWsd().endTransaction();
            ih.close();
        }
        reduceCommentTable(accountId);
    }
    
    public static CommentTimeLineData getCommentLineMsgList(String accountId) {
        
        TimeLinePosition position = getPosition(accountId);
        
        int limit = position.position + AppConfig.DB_CACHE_COUNT_OFFSET > AppConfig.DEFAULT_MSG_COUNT_50 ? position.position
                + AppConfig.DB_CACHE_COUNT_OFFSET
                : AppConfig.DEFAULT_MSG_COUNT_50;
        
        CommentListBean result = new CommentListBean();
        
        List<CommentBean> msgList = new ArrayList<CommentBean>();
        String sql = "select * from "
                + MentionCommentsTable.MentionCommentsDataTable.TABLE_NAME
                + " where "
                + MentionCommentsTable.MentionCommentsDataTable.ACCOUNTID
                + "  = " + accountId + " order by "
                + MentionCommentsTable.MentionCommentsDataTable.MBLOGID
                + " desc limit " + limit;
        Cursor c = getRsd().rawQuery(sql, null);
        Gson gson = new Gson();
        while (c.moveToNext()) {
            String json = c
                    .getString(c
                            .getColumnIndex(MentionCommentsTable.MentionCommentsDataTable.JSONDATA));
            if (!TextUtils.isEmpty(json)) {
                try {
                    CommentBean value = gson.fromJson(json, CommentBean.class);
                    value.getListViewSpannableString();
                    msgList.add(value);
                }
                catch (JsonSyntaxException e) {
                    AppLogger.e(e.getMessage());
                }
            }
            else {
                msgList.add(null);
            }
        }
        
        result.setComments(msgList);
        c.close();
        CommentTimeLineData mentionTimeLineData = new CommentTimeLineData(
                result, position);
        
        return mentionTimeLineData;
        
    }
    
    private static void reduceCommentTable(String accountId) {
        // String searchCount = "select count(" +
        // MentionCommentsTable.MentionCommentsDataTable.ID + ") as total" +
        // " from " + MentionCommentsTable.MentionCommentsDataTable.TABLE_NAME +
        // " where " + MentionCommentsTable.MentionCommentsDataTable.ACCOUNTID
        // + " = " + accountId;
        // int total = 0;
        // Cursor c = getRsd().rawQuery(searchCount, null);
        // if (c.moveToNext()) {
        // total = c.getInt(c.getColumnIndex("total"));
        // }
        //
        // c.close();
        //
        // AppLogger.e("total=" + total);
        //
        // int needDeletedNumber = total -
        // AppConfig.DEFAULT_MENTIONS_COMMENT_DB_CACHE_COUNT;
        //
        // if (needDeletedNumber > 0) {
        // AppLogger.e("" + needDeletedNumber);
        // String sql = " delete from " +
        // MentionCommentsTable.MentionCommentsDataTable.TABLE_NAME + " where "
        // + MentionCommentsTable.MentionCommentsDataTable.ID + " in "
        // + "( select " + MentionCommentsTable.MentionCommentsDataTable.ID +
        // " from " + MentionCommentsTable.MentionCommentsDataTable.TABLE_NAME +
        // " where "
        // + MentionCommentsTable.MentionCommentsDataTable.ACCOUNTID
        // + " in " + "(" + accountId + ") order by " +
        // MentionCommentsTable.MentionCommentsDataTable.ID + " asc limit " +
        // needDeletedNumber + " ) ";
        //
        // getWsd().execSQL(sql);
        // }
    }
    
    public static void asyncReplace(final CommentListBean list,
            final String accountId) {
        final CommentListBean data = new CommentListBean();
        data.replaceAll(list);
        new Thread(new Runnable() {
            @Override
            public void run() {
                deleteAllComments(accountId);
                addCommentLineMsg(data, accountId);
            }
        }).start();
        
    }
    
    static void deleteAllComments(String accountId) {
        String sql = "delete from "
                + MentionCommentsTable.MentionCommentsDataTable.TABLE_NAME
                + " where "
                + MentionCommentsTable.MentionCommentsDataTable.ACCOUNTID
                + " in " + "(" + accountId + ")";
        
        getWsd().execSQL(sql);
    }
    
    public static void asyncUpdatePosition(final TimeLinePosition position,
            final String accountId) {
        if (position == null) {
            return;
        }
        
        Runnable runnable = new Runnable() {
            @Override
            public void run() {
                updatePosition(position, accountId);
            }
        };
        
        new Thread(runnable).start();
    }
    
    private static void updatePosition(TimeLinePosition position,
            String accountId) {
        String sql = "select * from " + MentionCommentsTable.TABLE_NAME
                + " where " + MentionCommentsTable.ACCOUNTID + "  = "
                + accountId;
        Cursor c = getRsd().rawQuery(sql, null);
        Gson gson = new Gson();
        if (c.moveToNext()) {
            try {
                String[] args = { accountId };
                ContentValues cv = new ContentValues();
                cv.put(MentionCommentsTable.TIMELINEDATA, gson.toJson(position));
                getWsd().update(MentionCommentsTable.TABLE_NAME, cv,
                        MentionCommentsTable.ACCOUNTID + "=?", args);
            }
            catch (JsonSyntaxException e) {
                
            }
        }
        else {
            
            ContentValues cv = new ContentValues();
            cv.put(MentionCommentsTable.ACCOUNTID, accountId);
            cv.put(MentionCommentsTable.TIMELINEDATA, gson.toJson(position));
            getWsd().insert(MentionCommentsTable.TABLE_NAME,
                    MentionCommentsTable.ID, cv);
        }
    }
    
    public static TimeLinePosition getPosition(String accountId) {
        String sql = "select * from " + MentionCommentsTable.TABLE_NAME
                + " where " + MentionCommentsTable.ACCOUNTID + "  = "
                + accountId;
        Cursor c = getRsd().rawQuery(sql, null);
        Gson gson = new Gson();
        while (c.moveToNext()) {
            String json = c.getString(c
                    .getColumnIndex(MentionCommentsTable.TIMELINEDATA));
            if (!TextUtils.isEmpty(json)) {
                try {
                    TimeLinePosition value = gson.fromJson(json,
                            TimeLinePosition.class);
                    return value;
                    
                }
                catch (JsonSyntaxException e) {
                    
                }
            }
            
        }
        c.close();
        return new TimeLinePosition(0, 0);
    }
}
